Invalid Dimension on Copper Pipe

Anonymous · ‎07-06-2015

When placing a copper tube, say from the autodesk library (Pipe-B88-CU-L(PE)), then stretching the pipe, doing a fill, anything I will get the waringing "Dimension B is Invalid (0.4375)". The warning has the heading Pattern: - 1/4 and I have to click ok through the entire product list. This can happen with only placing pipe on its own and trying to stretch it. I have had this problem with earlier versions where I'd turn off the insulation. Not the case in this instance. All insualation and insulation specs are off and not set. I am using CADmep 2016 SP-1 and AutoCAD MEP 2016 with the hotfix's installed. I've tried a new drawing and still get the same occurance.

Is anyone else having this problem? If so, is there a fix other than getting rid of product lists and calc the same pipe size?

Anonymous · ‎07-07-2015

Mike, Does this happen in a new blank drawing?, With Insulation on or off?

Anonymous · ‎07-07-2015

Yeah, it happens in a new blank drawing with insulation off... I've also noticed that it only does it for the sizes 1" and below.

Anonymous · ‎07-07-2015

Check the couplings. That was the cause of an issue we had a while back.

Anonymous · ‎07-07-2015

Just checked the couplings, they seem to be ok. I can place a length of pipe and then stretch it to a shorter length (without any fittings or couplings) and it still goes through all the patter invalid dimensions.

Anonymous · ‎07-07-2015

Would you mind posting a small dwg that has this issue?

Anonymous · ‎07-07-2015

Attached is a sample drawing of a piece of 3/4" copper pipe

MOatman · ‎07-07-2015

When investigating your issue I discovered I had the same issue. I excluded every fitting in the service until the error stopped. I found a flange that I made with an invalid dimension that was causing the error. The invalid dimension wasn't an issue until it was used in 2016 software.

Anonymous · ‎07-07-2015

@MOatman wrote:
When investigating your issue I discovered I had the same issue. I excluded every fitting in the service until the error stopped. I found a flange that I made with an invalid dimension that was causing the error. The invalid dimension wasn't an issue until it was used in 2016 software.

Awesome! Don't have 16 here to work with.

Anonymous · ‎07-07-2015

Thank you moatman and Backnblack, I went through and excluded fittings until I found the problem with mine as well... it ended up being a rod coupling in my hanger tab with a bad calc

Anonymous · ‎03-16-2016

Thanks for the help. The solder joint was the problem for me. Worked fine in 2014, not working in 2016.